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Fluorine containing poly-n-vinyl carboxylic acid amides,processes for their preparation and their use as textile finishing agents

US 3,586,643 A · Inventors: MULLER KLAUS-DIETER et al.

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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Granted June 22, 1971. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by June 22, 1988.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJune 25, 1969
GrantedJune 22, 1971
Term endedJune 22, 1988
Application number—
Classification (CPC)C08F26/02 +2 more
Length4 pages

Timeline

Timeline From USPTO dates

1970197219741976197819801982198419861988Application filedJune 25, 1969Patent grantedJune 22, 1971Term endedJune 22, 1988

Sources & verification

Official USPTO records

Full published documentText and every drawing sheet as a PDF.USPTOFile historyStatus, office actions, notices, fee records and petitions.USPTO Patent CenterPatent Public Search recordSearchable full text and bibliographic data.USPTO

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Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comJustia PatentsFull text, claims and classification.patents.justia.comFreePatentsOnlineFull text and PDF.freepatentsonline.comEspacenetForeign family and legal status.European Patent Office

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